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Mod C Unit 2 Lesson 2 - Resource Availability

Authored by Monica Funston

Science

6th - 8th Grade

NGSS covered

Mod C Unit 2 Lesson 2 - Resource Availability
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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The graph shows the population of a group of rabbits in a restricted area studied over a period of five years. Which statement might explain why the population leveled off as shown in the graph?

The resources in the area ran out.

The rabbits encountered a new disease.

Predators were introduced into the area.

Competition for resources limited the rabbit population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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Which of these events would lead to an increase in the size of a population of squirrels?

More squirrels are born than die.

Some squirrels emigrate in search of food.

New predators are added to the ecosystem.

A large number of squirrels die because of a forest fire.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of these is the most likely reason that a population in an ecosystem could have a sharp decline?

The number of prey suddenly increases.

The number of predators suddenly decreases.

The competition for the same resource suddenly drops.

The abiotic resources in the environment suddenly drops.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Without other changes to a population, which of these will cause a population to increase in size?

The birth rate equals the death rate.

The birth rate is less than the death rate.

The birth rate is greater than the death rate.

The birth rate and the death rate both equal zero.

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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How did the drought most likely affect populations of grasshoppers living in the grassland ecosystems?

The insects adapted to eat other available foods instead of grass.

Populations increased because other insects were eliminated from the environment.

Populations decreased because the resources the grasshoppers needed were not available.

Populations of grasshoppers were not affected because the size of a population cannot change over time.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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How did the drought most likely affect the carrying capacity for populations of farm animals?

The populations increased at first and then decreased as time went on.

The populations decreased because the environment no longer had enough resources.

The populations stayed the same because they depended on biotic factors, not abiotic factors.

The populations increased because there was more room for animals once the plants were gone from the environment.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Aphids are tiny bugs that most people consider garden pests. They feed on plants and can damage them. Ladybugs are predators of aphids. Which graph best displays the general relationship between ladybug and aphid populations in a garden?

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Answer explanation

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This is correct because predator and prey populations would have a positive correlation. The more aphids there are, the more ladybugs could be supported by the available prey.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

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